arm: vf610: improve evaluation of reset source

[u-boot] / arch / arm / cpu / armv7 / vf610 / generic.c

diff --git a/arch/arm/cpu/armv7/vf610/generic.c b/arch/arm/cpu/armv7/vf610/generic.c
index f6ef495382430907e3763df9369c053779ab030d..92aaad941548391fbf5ae76bbcab4fb581661d86 100644 (file)
--- a/arch/arm/cpu/armv7/vf610/generic.c
+++ b/arch/arm/cpu/armv7/vf610/generic.c
@@ -1,20 +1,7 @@
 /*
  * Copyright 2013 Freescale Semiconductor, Inc.
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
@@ -278,20 +265,21 @@ static char *get_reset_cause(void)
 
        cause = readl(&src_regs->srsr);
        writel(cause, &src_regs->srsr);
-       cause &= 0xff;
 
-       switch (cause) {
-       case 0x08:
-               return "WDOG";
-       case 0x20:
+       if (cause & SRC_SRSR_POR_RST)
+               return "POWER ON RESET";
+       else if (cause & SRC_SRSR_WDOG_A5)
+               return "WDOG A5";
+       else if (cause & SRC_SRSR_WDOG_M4)
+               return "WDOG M4";
+       else if (cause & SRC_SRSR_JTAG_RST)
                return "JTAG HIGH-Z";
-       case 0x80:
+       else if (cause & SRC_SRSR_SW_RST)
+               return "SW RESET";
+       else if (cause & SRC_SRSR_RESETB)
                return "EXTERNAL RESET";
-       case 0xfd:
-               return "POR";
-       default:
+       else
                return "unknown reset";
-       }
 }
 
 int print_cpuinfo(void)